There are titles that go down in history for reasons that have more to do with the legend around their publication than with their content. Ulysses' fame is due, above all else, to the immense controversy that accompanies it and that has made it the most fascinating book of the 20th century. It should be remembered that Ulysses is not so much a novel as a colossal experiment that requires patience to understand the rules of the game that James Joyce himself proposes. This unpublished version by Carlos Manzano, careful and conceived based on what has always been considered canonical in its language of origin, that of Gabler from 1986, invites the reader to delve into the particular Joycean universe through more than a thousand pages of experimental walk through the streets of Dublin for a single day.